diff --git a/test/active_record/connection_adapter_test.rb b/test/active_record/connection_adapter_test.rb
index a72daff..5b81e7d 100644
--- a/test/active_record/connection_adapter_test.rb
+++ b/test/active_record/connection_adapter_test.rb
@@ -56,7 +56,7 @@ describe "ActiveRecord::Import DB-specific adapter class" do
     it "should appear in the AR connection adapter class's ancestors" do
       connection = ActiveRecord::Base.connection
       import_class_name = 'ActiveRecord::Import::' + connection.class.name.demodulize
-      assert_include connection.class.ancestors, import_class_name.constantize
+      assert_includes connection.class.ancestors, import_class_name.constantize
     end
   end
 end
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